Infiniti has been investing heavily in growing the brand across the world, especially in Europe. The G range had no four-pot in the lineup, and without that, few buyers would even consider it. Having economical engines right from the start will at least give purchasers a reason to cross-shop the G with the BMW 3 Series and Audi A4, its target market. It will need that expanded consideration to move from 2011's 145,000 global sales to the 500,000 sales it seeks in 2016.

If you're wondering why Mercedes would provide engines and know-how to an entry-level luxury car that competes against the 3 Series, one of Mercedes main rivals, Renault-Nissan CEO Carlos Ghosn said there's no overlap. "People buying Infiniti or Daimler, they don't cross-shop between the two brands.... We came to the conclusion that Mercedes collaborating with Infiniti will not be hurting each other."

Infiniti Information

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There was a report from motor trend about the G using the Mercedes diesel engine and then using the M35h hybrid, a VQ37 with direct injection, and a special edition IPL engine twin turbo built in the same plant as the GTR engine. I like the sound of the VQ35 nice NA V6

You are kidding right?
You forgot that the reason Infiniti and Lexus gained market share so fast was the MB reliability issues. I know. I used to drive them.
May be they have improved now but I wouldn't know. Heck, there are countries out there that won't touch MB with a ten foot pole since they have driven Lexus cars.

So basically if I want to own a G37, I should buy one NOW before Mercedes screws it up...
Mercedes makes a very good car but I too was not impressed AT ALL with how things turned out between them and Chrysler.

[blocked]

I hope they aren't doing away with the VQ37VHR. If you don't know that's their 3.7 6 engine that powers a lot of their vehicles, G37, 370Z, M37, etc. I honestly think that would be a shame because I've heard nothing but good things about it.